Core was generated by `/opt/couchbase/lib/erlang/erts-5.8.5/bin/beam.smp -A 16 -sbt u -P 327680 -K tru'. Program terminated with signal 11, Segmentation fault. #0 replace (allctr=0x279f6c0, size=, cand_blk=, cand_size=, flags=0) at beam/erl_bestfit_alloc.c:281 281 beam/erl_bestfit_alloc.c: No such file or directory. in beam/erl_bestfit_alloc.c Missing separate debuginfos, use: debuginfo-install couchbase-server-2.0.0-1728.x86_64 (gdb) t a a bt Thread 28 (Thread 0x7fa4fe00d700 (LWP 10792)): #0 0x0000003e9200ebad in fsync () from /lib64/libpthread.so.0 #1 0x000000000053b8db in efile_fsync (errInfo=0x27a7854, fd=) at drivers/unix/unix_efile.c:806 #2 0x0000000000550e18 in invoke_fsync (data=0x27a7828) at drivers/common/efile_drv.c:940 #3 0x00000000004e8f55 in async_main (arg=0x7fa4fe88e408) at beam/erl_async.c:281 #4 0x0000000000584d89 in thr_wrapper (vtwd=0x7fff614a16d0) at pthread/ethread.c:106 #5 0x0000003e920077f1 in start_thread () from /lib64/libpthread.so.0 #6 0x0000003e918e5ccd in clone () from /lib64/libc.so.6 Thread 27 (Thread 0x7fa500033700 (LWP 10781)): #0 0x0000003e9200e4ed in read () from /lib64/libpthread.so.0 #1 0x000000000053810e in signal_dispatcher_thread_func (unused=) at sys/unix/sys.c:2906 #2 0x0000000000584d89 in thr_wrapper (vtwd=0x7fff614a1630) at pthread/ethread.c:106 #3 0x0000003e920077f1 in start_thread () from /lib64/libpthread.so.0 #4 0x0000003e918e5ccd in clone () from /lib64/libc.so.6 Thread 26 (Thread 0x7fa4fe02f700 (LWP 10791)): #0 0x0000003e9200b3dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x0000000000582e29 in ethr_cond_wait (cnd=, mtx=) at common/ethr_mutex.c:1350 #2 0x00000000004e8efb in erts_cnd_wait (arg=0x7fa4fe88e390) at beam/erl_threads.h:697 #3 async_get (arg=0x7fa4fe88e390) at beam/erl_async.c:207 #4 async_main (arg=0x7fa4fe88e390) at beam/erl_async.c:274 #5 0x0000000000584d89 in thr_wrapper (vtwd=0x7fff614a16d0) at pthread/ethread.c:106 #6 0x0000003e920077f1 in start_thread () from /lib64/libpthread.so.0 #7 0x0000003e918e5ccd in clone () from /lib64/libc.so.6 Thread 25 (Thread 0x7fa4fe051700 (LWP 10790)): #0 0x0000003e9200b3dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x0000000000582e29 in ethr_cond_wait (cnd=, mtx=) at common/ethr_mutex.c:1350 #2 0x00000000004e8efb in erts_cnd_wait (arg=0x7fa4fe88e318) at beam/erl_threads.h:697 #3 async_get (arg=0x7fa4fe88e318) at beam/erl_async.c:207 #4 async_main (arg=0x7fa4fe88e318) at beam/erl_async.c:274 #5 0x0000000000584d89 in thr_wrapper (vtwd=0x7fff614a16d0) at pthread/ethread.c:106 #6 0x0000003e920077f1 in start_thread () from /lib64/libpthread.so.0 #7 0x0000003e918e5ccd in clone () from /lib64/libc.so.6 Thread 24 (Thread 0x7fa4fc0b4700 (LWP 10804)): #0 0x0000003e9200b3dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x0000000000585463 in wait__ (e=0x273ad20) at pthread/ethr_event.c:185 #2 ethr_event_wait (e=0x273ad20) at pthread/ethr_event.c:218 #3 0x000000000049821d in erts_tse_wait (fcalls=, esdp=0x7fa4ff5cb200, rq=0x7fa4ff5a09c0) at beam/erl_threads.h:1809 #4 scheduler_wait (fcalls=, esdp=0x7fa4ff5cb200, rq=0x7fa4ff5a09c0) at beam/erl_process.c:1076 #5 0x000000000049a248 in schedule (p=, calls=) at beam/erl_process.c:5421 #6 0x000000000051e65f in process_main () at beam/beam_emu.c:1225 #7 0x000000000048d496 in sched_thread_func (vesdp=0x7fa4ff5cb200) at beam/erl_process.c:3782 #8 0x0000000000584d89 in thr_wrapper (vtwd=0x7fff614a1710) at pthread/ethread.c:106 #9 0x0000003e920077f1 in start_thread () from /lib64/libpthread.so.0 #10 0x0000003e918e5ccd in clone () from /lib64/libc.so.6 Thread 23 (Thread 0x7fa4b29e2700 (LWP 10812)): #0 0x0000003e918ab15d in nanosleep () from /lib64/libc.so.6 #1 0x0000003e918df124 in usleep () from /lib64/libc.so.6 #2 0x00007fa4b29e7397 in terminatorLoop (args=) at mapreduce_nif.cc:445 #3 0x0000000000584d89 in thr_wrapper (vtwd=0x7fa4fdeb6ae0) at pthread/ethread.c:106 #4 0x0000003e920077f1 in start_thread () from /lib64/libpthread.so.0 #5 0x0000003e918e5ccd in clone () from /lib64/libc.so.6 Thread 22 (Thread 0x7fa4fdeb7700 (LWP 10801)): #0 0x0000003e9200bbe8 in pthread_cond_signal@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x0000000000582e89 in ethr_cond_signal (cnd=) at common/ethr_mutex.c:1320 #2 0x00000000004e8dc8 in erts_cnd_signal (ix=, key=, async_invoke=, async_data=0x27a76c8, async_free=0x54c4c0 ) at beam/erl_threads.h:716 #3 async_add (ix=, key=, async_invoke=, async_data=0x27a76c8, async_free=0x54c4c0 ) at beam/erl_async.c:190 ---Type to continue, or q to quit--- #4 driver_async (ix=, key=, async_invoke=, async_data=0x27a76c8, async_free=0x54c4c0 ) at beam/erl_async.c:440 #5 0x000000000054f055 in file_outputv (e=, ev=) at drivers/common/efile_drv.c:3241 #6 0x0000000000483c78 in erts_write_to_port (caller_id=, p=0x7fa4fdeb6a10, list=140342351364097) at beam/io.c:1159 #7 0x00000000004f5301 in do_port_command (A__p=0x7fa4fa9472b8, A_1=3210135, A_2=140345163117058, A_3=, flags=0) at beam/erl_bif_port.c:181 #8 0x0000000000521927 in process_main () at beam/beam_emu.c:2542 #9 0x000000000048d496 in sched_thread_func (vesdp=0x7fa4ff5a0fc0) at beam/erl_process.c:3782 #10 0x0000000000584d89 in thr_wrapper (vtwd=0x7fff614a1710) at pthread/ethread.c:106 #11 0x0000003e920077f1 in start_thread () from /lib64/libpthread.so.0 #12 0x0000003e918e5ccd in clone () from /lib64/libc.so.6 Thread 21 (Thread 0x7fa4fe073700 (LWP 10789)): #0 0x0000003e9200b3dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x0000000000582e29 in ethr_cond_wait (cnd=, mtx=) at common/ethr_mutex.c:1350 #2 0x00000000004e8efb in erts_cnd_wait (arg=0x7fa4fe88e2a0) at beam/erl_threads.h:697 #3 async_get (arg=0x7fa4fe88e2a0) at beam/erl_async.c:207 #4 async_main (arg=0x7fa4fe88e2a0) at beam/erl_async.c:274 #5 0x0000000000584d89 in thr_wrapper (vtwd=0x7fff614a16d0) at pthread/ethread.c:106 #6 0x0000003e920077f1 in start_thread () from /lib64/libpthread.so.0 #7 0x0000003e918e5ccd in clone () from /lib64/libc.so.6 Thread 20 (Thread 0x7fa4fd4b6700 (LWP 10802)): #0 0x0000003e9200e185 in __lll_unlock_wake () from /lib64/libpthread.so.0 #1 0x0000003e9200a697 in _L_unlock_657 () from /lib64/libpthread.so.0 #2 0x0000003e9200a5ff in pthread_mutex_unlock () from /lib64/libpthread.so.0 #3 0x00000000004e8d7b in ethr_mutex_unlock (ix=, key=, async_invoke=, async_data=0x27ad650, async_free=0x54c090 ) at ../include/internal/ethr_mutex.h:597 #4 erts_mtx_unlock (ix=, key=, async_invoke=, async_data=0x27ad650, async_free=0x54c090 ) at beam/erl_threads.h:639 #5 async_add (ix=, key=, async_invoke=, async_data=0x27ad650, async_free=0x54c090 ) at beam/erl_async.c:198 #6 driver_async (ix=, key=, async_invoke=, async_data=0x27ad650, async_free=0x54c090 ) at beam/erl_async.c:440 #7 0x000000000054f055 in file_outputv (e=, ev=) at drivers/common/efile_drv.c:3241 #8 0x0000000000483c78 in erts_write_to_port (caller_id=, p=0x7fa5002fb038, list=140342351364118) at beam/io.c:1159 #9 0x00000000004f5301 in do_port_command (A__p=0x7fa4fadd6f18, A_1=3212295, A_2=140345016248433, A_3=, flags=0) at beam/erl_bif_port.c:181 #10 0x0000000000521927 in process_main () at beam/beam_emu.c:2542 #11 0x000000000048d496 in sched_thread_func (vesdp=0x7fa4ff5af080) at beam/erl_process.c:3782 #12 0x0000000000584d89 in thr_wrapper (vtwd=0x7fff614a1710) at pthread/ethread.c:106 #13 0x0000003e920077f1 in start_thread () from /lib64/libpthread.so.0 #14 0x0000003e918e5ccd in clone () from /lib64/libc.so.6 Thread 19 (Thread 0x7fa4fdfeb700 (LWP 10793)): #0 0x0000003e9200dff4 in __lll_lock_wait () from /lib64/libpthread.so.0 #1 0x0000003e92010dbd in _L_cond_lock_886 () from /lib64/libpthread.so.0 #2 0x0000003e92010c97 in __pthread_mutex_cond_lock () from /lib64/libpthread.so.0 #3 0x0000003e9200b476 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #4 0x0000000000582e29 in ethr_cond_wait (cnd=, mtx=) at common/ethr_mutex.c:1350 #5 0x00000000004e8efb in erts_cnd_wait (arg=0x7fa4fe88e480) at beam/erl_threads.h:697 #6 async_get (arg=0x7fa4fe88e480) at beam/erl_async.c:207 #7 async_main (arg=0x7fa4fe88e480) at beam/erl_async.c:274 #8 0x0000000000584d89 in thr_wrapper (vtwd=0x7fff614a16d0) at pthread/ethread.c:106 #9 0x0000003e920077f1 in start_thread () from /lib64/libpthread.so.0 #10 0x0000003e918e5ccd in clone () from /lib64/libc.so.6 Thread 18 (Thread 0x7fa4ff632700 (LWP 10782)): #0 0x0000003e9200b3dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x0000000000582e29 in ethr_cond_wait (cnd=, mtx=) at common/ethr_mutex.c:1350 #2 0x000000000046a1cf in erts_cnd_wait (unused=) at beam/erl_threads.h:697 #3 erts_smp_cnd_wait (unused=) at beam/erl_smp.h:472 #4 emergency_watchdog (unused=) at beam/utils.c:3945 #5 0x0000000000584d89 in thr_wrapper (vtwd=0x7fff614a1740) at pthread/ethread.c:106 #6 0x0000003e920077f1 in start_thread () from /lib64/libpthread.so.0 #7 0x0000003e918e5ccd in clone () from /lib64/libc.so.6 Thread 17 (Thread 0x7fa4b1f27700 (LWP 12346)): #0 0x0000003e918ab15d in nanosleep () from /lib64/libc.so.6 #1 0x0000003e918df124 in usleep () from /lib64/libc.so.6 ---Type to continue, or q to quit--- #2 0x00007fa4f975d163 in Sleep (this=0x7fa4f4150090) at src/platform-linux.cc:1184 #3 v8::internal::SignalSender::Run (this=0x7fa4f4150090) at src/platform-linux.cc:1150 #4 0x00007fa4f975c580 in v8::internal::ThreadEntry (arg=0x7fa4f4150090) at src/platform-linux.cc:745 #5 0x0000003e920077f1 in start_thread () from /lib64/libpthread.so.0 #6 0x0000003e918e5ccd in clone () from /lib64/libc.so.6 Thread 16 (Thread 0x7fa4fe0d9700 (LWP 10786)): #0 0x0000003e9200b3dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x0000000000582e29 in ethr_cond_wait (cnd=, mtx=) at common/ethr_mutex.c:1350 #2 0x00000000004e8efb in erts_cnd_wait (arg=0x7fa4fe88e138) at beam/erl_threads.h:697 #3 async_get (arg=0x7fa4fe88e138) at beam/erl_async.c:207 #4 async_main (arg=0x7fa4fe88e138) at beam/erl_async.c:274 #5 0x0000000000584d89 in thr_wrapper (vtwd=0x7fff614a16d0) at pthread/ethread.c:106 #6 0x0000003e920077f1 in start_thread () from /lib64/libpthread.so.0 #7 0x0000003e918e5ccd in clone () from /lib64/libc.so.6 Thread 15 (Thread 0x7fa4fdf41700 (LWP 10798)): #0 0x0000003e9200b3dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x0000000000582e29 in ethr_cond_wait (cnd=, mtx=) at common/ethr_mutex.c:1350 #2 0x00000000004e8efb in erts_cnd_wait (arg=0x7fa4fe88e6d8) at beam/erl_threads.h:697 #3 async_get (arg=0x7fa4fe88e6d8) at beam/erl_async.c:207 #4 async_main (arg=0x7fa4fe88e6d8) at beam/erl_async.c:274 #5 0x0000000000584d89 in thr_wrapper (vtwd=0x7fff614a16d0) at pthread/ethread.c:106 #6 0x0000003e920077f1 in start_thread () from /lib64/libpthread.so.0 #7 0x0000003e918e5ccd in clone () from /lib64/libc.so.6 Thread 14 (Thread 0x7fa4a66f0700 (LWP 12718)): #0 0x0000003e918ab15d in nanosleep () from /lib64/libc.so.6 #1 0x0000003e918df124 in usleep () from /lib64/libc.so.6 #2 0x00007fa4f97dc848 in v8::internal::ContextSwitcher::Run (this=0x7fa4ac13cee0) at src/v8threads.cc:457 #3 0x00007fa4f975c580 in v8::internal::ThreadEntry (arg=0x7fa4ac13cee0) at src/platform-linux.cc:745 #4 0x0000003e920077f1 in start_thread () from /lib64/libpthread.so.0 #5 0x0000003e918e5ccd in clone () from /lib64/libc.so.6 Thread 13 (Thread 0x7fa50035f700 (LWP 10780)): #0 0x0000003e918de8b3 in select () from /lib64/libc.so.6 #1 0x0000000000537ba0 in erts_sys_main_thread () at sys/unix/sys.c:3049 #2 0x0000000000444761 in erl_start (argc=54, argv=) at beam/erl_init.c:1441 #3 0x0000000000426219 in main (argc=, argv=) at sys/unix/erl_main.c:29 Thread 12 (Thread 0x7fa4fdf1f700 (LWP 10799)): #0 0x0000003e9200b3dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x0000000000582e29 in ethr_cond_wait (cnd=, mtx=) at common/ethr_mutex.c:1350 #2 0x00000000004e8efb in erts_cnd_wait (arg=0x7fa4fe88e750) at beam/erl_threads.h:697 #3 async_get (arg=0x7fa4fe88e750) at beam/erl_async.c:207 #4 async_main (arg=0x7fa4fe88e750) at beam/erl_async.c:274 #5 0x0000000000584d89 in thr_wrapper (vtwd=0x7fff614a16d0) at pthread/ethread.c:106 #6 0x0000003e920077f1 in start_thread () from /lib64/libpthread.so.0 #7 0x0000003e918e5ccd in clone () from /lib64/libc.so.6 Thread 11 (Thread 0x7fa4fdf63700 (LWP 10797)): #0 0x0000003e9200b3dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x0000000000582e29 in ethr_cond_wait (cnd=, mtx=) at common/ethr_mutex.c:1350 #2 0x00000000004e8efb in erts_cnd_wait (arg=0x7fa4fe88e660) at beam/erl_threads.h:697 #3 async_get (arg=0x7fa4fe88e660) at beam/erl_async.c:207 #4 async_main (arg=0x7fa4fe88e660) at beam/erl_async.c:274 #5 0x0000000000584d89 in thr_wrapper (vtwd=0x7fff614a16d0) at pthread/ethread.c:106 #6 0x0000003e920077f1 in start_thread () from /lib64/libpthread.so.0 #7 0x0000003e918e5ccd in clone () from /lib64/libc.so.6 Thread 10 (Thread 0x7fa4fdf85700 (LWP 10796)): #0 0x0000003e9200b3dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x0000000000582e29 in ethr_cond_wait (cnd=, mtx=) at common/ethr_mutex.c:1350 ---Type to continue, or q to quit--- #2 0x00000000004e8efb in erts_cnd_wait (arg=0x7fa4fe88e5e8) at beam/erl_threads.h:697 #3 async_get (arg=0x7fa4fe88e5e8) at beam/erl_async.c:207 #4 async_main (arg=0x7fa4fe88e5e8) at beam/erl_async.c:274 #5 0x0000000000584d89 in thr_wrapper (vtwd=0x7fff614a16d0) at pthread/ethread.c:106 #6 0x0000003e920077f1 in start_thread () from /lib64/libpthread.so.0 #7 0x0000003e918e5ccd in clone () from /lib64/libc.so.6 Thread 9 (Thread 0x7fa4fdefd700 (LWP 10800)): #0 0x0000003e9200f03d in waitpid () from /lib64/libpthread.so.0 #1 0x000000000053906f in child_waiter (unused=) at sys/unix/sys.c:2821 #2 0x0000000000584d89 in thr_wrapper (vtwd=0x7fff614a16f0) at pthread/ethread.c:106 #3 0x0000003e920077f1 in start_thread () from /lib64/libpthread.so.0 #4 0x0000003e918e5ccd in clone () from /lib64/libc.so.6 Thread 8 (Thread 0x7fa4ff31f700 (LWP 10783)): #0 0x0000003e9200b3dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x0000000000582e29 in ethr_cond_wait (cnd=, mtx=) at common/ethr_mutex.c:1350 #2 0x0000000000462ad9 in erts_cnd_wait (unused=) at beam/erl_threads.h:697 #3 erts_smp_cnd_wait (unused=) at beam/erl_smp.h:472 #4 sys_msg_dispatcher_func (unused=) at beam/erl_trace.c:3238 #5 0x0000000000584d89 in thr_wrapper (vtwd=0x7fff614a1740) at pthread/ethread.c:106 #6 0x0000003e920077f1 in start_thread () from /lib64/libpthread.so.0 #7 0x0000003e918e5ccd in clone () from /lib64/libc.so.6 Thread 7 (Thread 0x7fa4fdfa7700 (LWP 10795)): #0 0x0000003e9200b3dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x0000000000582e29 in ethr_cond_wait (cnd=, mtx=) at common/ethr_mutex.c:1350 #2 0x00000000004e8efb in erts_cnd_wait (arg=0x7fa4fe88e570) at beam/erl_threads.h:697 #3 async_get (arg=0x7fa4fe88e570) at beam/erl_async.c:207 #4 async_main (arg=0x7fa4fe88e570) at beam/erl_async.c:274 #5 0x0000000000584d89 in thr_wrapper (vtwd=0x7fff614a16d0) at pthread/ethread.c:106 #6 0x0000003e920077f1 in start_thread () from /lib64/libpthread.so.0 #7 0x0000003e918e5ccd in clone () from /lib64/libc.so.6 Thread 6 (Thread 0x7fa4fe095700 (LWP 10788)): #0 0x0000003e9200b3dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x0000000000582e29 in ethr_cond_wait (cnd=, mtx=) at common/ethr_mutex.c:1350 #2 0x00000000004e8efb in erts_cnd_wait (arg=0x7fa4fe88e228) at beam/erl_threads.h:697 #3 async_get (arg=0x7fa4fe88e228) at beam/erl_async.c:207 #4 async_main (arg=0x7fa4fe88e228) at beam/erl_async.c:274 #5 0x0000000000584d89 in thr_wrapper (vtwd=0x7fff614a16d0) at pthread/ethread.c:106 #6 0x0000003e920077f1 in start_thread () from /lib64/libpthread.so.0 #7 0x0000003e918e5ccd in clone () from /lib64/libc.so.6 Thread 5 (Thread 0x7fa4fe0b7700 (LWP 10787)): #0 0x0000003e9200b3dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x0000000000582e29 in ethr_cond_wait (cnd=, mtx=) at common/ethr_mutex.c:1350 #2 0x00000000004e8efb in erts_cnd_wait (arg=0x7fa4fe88e1b0) at beam/erl_threads.h:697 #3 async_get (arg=0x7fa4fe88e1b0) at beam/erl_async.c:207 #4 async_main (arg=0x7fa4fe88e1b0) at beam/erl_async.c:274 #5 0x0000000000584d89 in thr_wrapper (vtwd=0x7fff614a16d0) at pthread/ethread.c:106 #6 0x0000003e920077f1 in start_thread () from /lib64/libpthread.so.0 #7 0x0000003e918e5ccd in clone () from /lib64/libc.so.6 Thread 4 (Thread 0x7fa4fe0fb700 (LWP 10785)): #0 0x0000003e9200b3dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x0000000000582e29 in ethr_cond_wait (cnd=, mtx=) at common/ethr_mutex.c:1350 #2 0x00000000004e8efb in erts_cnd_wait (arg=0x7fa4fe88e0c0) at beam/erl_threads.h:697 #3 async_get (arg=0x7fa4fe88e0c0) at beam/erl_async.c:207 #4 async_main (arg=0x7fa4fe88e0c0) at beam/erl_async.c:274 #5 0x0000000000584d89 in thr_wrapper (vtwd=0x7fff614a16d0) at pthread/ethread.c:106 #6 0x0000003e920077f1 in start_thread () from /lib64/libpthread.so.0 #7 0x0000003e918e5ccd in clone () from /lib64/libc.so.6 ---Type to continue, or q to quit--- Thread 3 (Thread 0x7fa4fcab5700 (LWP 10803)): #0 process_main () at x86_64-unknown-linux-gnu/opt/smp/beam_hot.h:539 #1 0x000000000048d496 in sched_thread_func (vesdp=0x7fa4ff5bd140) at beam/erl_process.c:3782 #2 0x0000000000584d89 in thr_wrapper (vtwd=0x7fff614a1710) at pthread/ethread.c:106 #3 0x0000003e920077f1 in start_thread () from /lib64/libpthread.so.0 #4 0x0000003e918e5ccd in clone () from /lib64/libc.so.6 Thread 2 (Thread 0x7fa4fdfc9700 (LWP 10794)): #0 0x0000003e9200b3dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x0000000000582e29 in ethr_cond_wait (cnd=, mtx=) at common/ethr_mutex.c:1350 #2 0x00000000004e8efb in erts_cnd_wait (arg=0x7fa4fe88e4f8) at beam/erl_threads.h:697 #3 async_get (arg=0x7fa4fe88e4f8) at beam/erl_async.c:207 #4 async_main (arg=0x7fa4fe88e4f8) at beam/erl_async.c:274 #5 0x0000000000584d89 in thr_wrapper (vtwd=0x7fff614a16d0) at pthread/ethread.c:106 #6 0x0000003e920077f1 in start_thread () from /lib64/libpthread.so.0 #7 0x0000003e918e5ccd in clone () from /lib64/libc.so.6 Thread 1 (Thread 0x7fa4fe11d700 (LWP 10784)): #0 replace (allctr=0x279f6c0, size=, cand_blk=, cand_size=, flags=0) at beam/erl_bestfit_alloc.c:281 #1 bf_unlink_free_block (allctr=0x279f6c0, size=, cand_blk=, cand_size=, flags=0) at beam/erl_bestfit_alloc.c:802 #2 bf_get_free_block (allctr=0x279f6c0, size=, cand_blk=, cand_size=, flags=0) at beam/erl_bestfit_alloc.c:865 #3 0x0000000000437384 in mbc_alloc_block (allctr=0x279f6c0, size=360) at beam/erl_alloc_util.c:683 #4 mbc_alloc (allctr=0x279f6c0, size=360) at beam/erl_alloc_util.c:822 #5 0x0000000000438154 in do_erts_alcu_alloc (type=, extra=, size=352) at beam/erl_alloc_util.c:2791 #6 erts_alcu_alloc_thr_pref (type=, extra=, size=352) at beam/erl_alloc_util.c:2865 #7 0x000000000054c1b9 in ef_safe_alloc (s=352) at drivers/common/efile_drv.c:412 #8 0x000000000054c29a in invoke_writev (data=0x27ad650) at drivers/common/efile_drv.c:1323 #9 0x00000000004e8f55 in async_main (arg=0x7fa4fe88e048) at beam/erl_async.c:281 #10 0x0000000000584d89 in thr_wrapper (vtwd=0x7fff614a16d0) at pthread/ethread.c:106 #11 0x0000003e920077f1 in start_thread () from /lib64/libpthread.so.0 #12 0x0000003e918e5ccd in clone () from /lib64/libc.so.6